|
|
|
|
|
| Aloncle, Henri; Delaporte, Francis. |
| As a result of 5 years of sampling the following results were reached: (1) so far as growth was concerned 3 size groups were recognised during June-July. The `classic' type measuring similar to 52-62 cm, a group ranging from 54-55 cm and a 3rd group measuring 64-65cm. By marking the fish and by studying the degree of distribution of the stomach parasite, H.fusca it was noted that the albacore entering the north east Atlantic during summer constitute a heterogenous population migrate along the same route upto the north west boundary of Cape Finisterre. Thereafter they diverge, one group forming a semi-circle along the Bay of Biscay, another moving northwards and on reaching the south of Ireland bends westward. |
| Tipo: Text |
Palavras-chave: North east Atlantic; Growth; Polution dynamique; Migration; Thunnus alalunga. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-2227.pdf |
| |
|
| |
|
|
| Castricfey, A. |
| During a diving survey at Ushant island, the Scleractinian Dendrophyllia cornigera (Lamarck) was discovered at a depth of 30 m, below the laminarian zone. This is the shallowest record at present of this species, which is better known from the rocky bottoms between 200 and 500 m. Conditions favouring this occurrence in shallow water, as well as the occurrence of the species around 60-90 m in other coastal sites (Sein, Audierne, Penmarc'h, Glenan, Belle-Ile, Vigo), are examined, with special reference to temperature. D. cornigera tolerates temperatures ranging from 8 degrees C at its northern limit in the SW of Ireland, to 14 degrees C at its southern limit, in the Cape Verde Islands. Within its entire distribution range, the species displays some... |
| Tipo: Text |
Palavras-chave: Dendrophyllia cornigera; Sublittoral; Rocky bottom; Benthic communities; North east Atlantic. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00096/20734/18371.pdf |
| |
|
|
|
